Observation compartment for prisons and the like



R. L. CLARK Jan. 1, 1935.

OBSERVATION COMPARTMENT FOR PRISON S AND THE LIKE Filed Aug. 21, 1930- 2 Sheets-Sheet l III lllllllllllllllr INVENTOR fi yrn'grmz L.

l ATTORNEY Jan. 1, 1935. R. L. CLARK 1,986,712

OBSERVATION COMPARTMENT FOR PRISONS AND THE LIKE Fild Aug. 21, 1950 2 Sheets-Sheet 2 INVENTOR A? r/o/2c' L. Clar 7M6 ATTORNEY proof casingrto discharge gas and lower outwardly directed flanges to engage opposite faces"oi' "said floor adjacent said .open ing to limit the vertical'movements of said casing through saidopening, said casing having an opening in the bottom adjacent one side thereof,

a closure for the latter opening a gastank cas h" ennet-g I proof casing at the side thereof opposite said bottom opening and in spaced-relation'to the lgiettem ing suspended from the lower'end orit opening of said bullet-pi;jqof 4 cally movable with the latter, pipesystem?irl"-" eluding a vertical pipe leading upwardly from the gas tank casing througmthebottomz-of them bullet-proof casing, horizontal branch pipeslex tending from the vertical pipe and' mpenin'g" through opposite sidesoil the bullet proof casing near the tap thereof to discharge gas from the sides .of the" t int-treat; hasmg intdlsaid upper chamber when the outlet endsof said horizontal pipes pa s unwar lrbg s s d: fi q gas bullet-proof casing moves upwardly and a lower set of horizontal branchpipe's leadingfroin said verticalpip and open g through I opposite sides of therbulletmroof casing for 1discharge,of gas into the upper chamberadjacent said floor level whs i' the 0m e' m i h iea 'l 'c v its uppe most limit ofn'iov walls of the fcornpar't nent to enable b 'ccupants thereof to view prisoners" in said upper chamber without danger t0 ,thefpers'onal safetytofthe (1ccupaiits,for} Ithe'bullet-p offcasing. I 2 ..In, a penal or like institution having upper and'lower chambers separatedfl by a floor havil an openin 7 4 bullet-pro teasing siidable 1 vertically'l thr ugh, said opemnga d, ha ing a commitment "therein "and" also having exterior s a ed upper an wei' ,Q w d r di ect said floor adjacent said] opening in 15am,"

to limit the vertical: pavements. of S d "0a 2.

hrough d "open n saids n ha in n p n ng to. ermit ng s'si nd ess toia i rom the. casina a g atstac r l casin connected withjsa'iid bul1et=n oof in for yet l'motement there-g 1 with; a p pe system leading rrom' said tank casing into said compartment and ncluding branches ear the top of the 'bulletip ofcasin company .t bullet-' ment and leading through, the l sid'e ot'eriorly spacedupp'er a aiol er qutwam y di-r 6:5.

rected flanges to. e a the upper iid lower faces" oi 'saidifioorladi ent saidlfloor opening tog lirnit the vertical lm eats? of isaid coznpai'tment through said floor pening saidcasiiig navine'ann e ngi samitiesrs as w sa d; bath ng s -mi a em anq'ma sin thl' slight ment therewith, a pipe system leading from said tan-kpasing intosaid compartmentland'including branches near the'top of'thecompartment and leading through the sides of the bullet-proof casingto discharge gas into said upper chamber after slight. upward movement of said casing and including other branch pipes leading from said vertical pipe through the side walls of the bulletproof casing to discharge additional gas into said 7 upper chamber to supplement the amount of gas first projected into said upper chamber through said pipe branches.

4. In alpenal or like institution having upper vand lower chambers separated by a floor having azi 'opening; a bullet proof casing slidable vertiq t hr s pening anq-havinsa Compartment therein and also having spaced uppen and lower exterior outwardly directed flanges to en a e e; up e nd ow rac s f said. floo a acen id fl o q mns to imi the v t cal movements of said casing through said opening, said Ca i l Y having a l-opening to permit ingress. and egress to and from the compartment of the casing, agasl tanlg casingconnectedwith said; bulletpr'o'of casing for movement therewith, a

pipe 'systein leading from said tank easing into said compartment andfincluding branches near the top of the compartment and leadingthrough the sides of. the bullet-proof casingvto discharge a i o S d u p a e after sli h u war movement of said bullet-proof casing and includ ing other branch pipes leading through the side walls of the bullet-proof casing to discharge additional gas into said upper chamber adjacentsaid floor when the bullet proof casing has reached the uppermost limit of vertical movement.- a

5. 'In a penal or like institution having-upper and lower chambers separated bya-fioor having an opening therein, a verticaiiy,movablebulletproof observation casing having'a compartment therein and being slidable-vertically through said floorvopening, means for moving said bulletproof casing, the bullet -proof casing having an opening to permit ingress and egress into and out of the compartment of said casing, a closure; for said casingopening, a gastank carried by said casing, a 'aipe s'ystem leading from the gas tank into,

; the compartment of said casing including upper and lower series of gas outlets leading from the compa tment of said casing through the side wa l i h na 6. In a penal or like institution having, upper and lower chambers separated by a floor an opening therein, a bullet-proof observation casing'having a compartment therein and. slid able vertically through said fioor opening means for moving said compartment, the bullet-proof casing having an opening to permit ingress and egress intoand out of said compartment of the casing, a closure for said., casing opening, av gas tank casing carried by said bullet-proof casing, a

pipe system leading from the gas tank easing into the compartment ofthe bullet-proof casing. andincluding upper and lower series of gas outlets leading. from the compartment of the bullet proof casing through the side walls thereofland, including nozzles arranged at spaced points to} chargegas in all directions into the upper. chamber above said floor f I" 

